Feed preheating device of copper melting furnace

Abstract

The utility model relates to the technical field of copper melting furnaces, in particular to a copper melting furnace feed preheating device which comprises a melting furnace. A preheating mechanism and an air inlet mechanism are arranged in the melting furnace; the preheating mechanism comprises a feeding pipeline, the feeding pipeline is connected to the top end of the melting furnace, a baffle is slidably connected to the middle of the interior of the feeding pipeline, a partition plate is rotatably connected to the top end of the interior of the feeding pipeline, and a feeding hopper is fixedly connected to the top end of the feeding pipeline. And a double-layer partition structure is formed in the feeding pipeline through the rotary partition plate and the sliding baffle, and the situation that the temperature in the melting furnace is reduced due to dissipation of air in the melting furnace during feeding is avoided. By means of the double-layer partition type structure, the recycled copper material on the partition plate can be preheated in an area between the partition plate and the baffle in an auxiliary mode through residual heat in smoke while the recycled copper material on the partition plate is preheated, the preheating time of the recycled copper material is prolonged, and the copper material with residual insulation outer skin or heat insulation outer skin is fully preheated.

Description

Technical Field

[0001] This utility model relates to the field of copper melting furnace technology, specifically a copper melting furnace feeding preheating device. Background Technology

[0002] In the smelting and processing of recycled copper, the preheating and melting efficiency of the copper directly affect production energy consumption and product quality. Directly introducing untreated, cold copper into the furnace leads to low thermal energy utilization. The cold copper absorbs a large amount of heat from the furnace, requiring continuous replenishment of high-temperature heat sources, resulting in increased fuel or electricity consumption. Simultaneously, the high-temperature flue gas discharged from the furnace is directly emitted, failing to effectively recover waste heat and resulting in significant energy waste. Therefore, existing technologies preheat the raw materials during feeding to fully utilize the waste heat of the high-temperature flue gas and reduce the temperature difference with the furnace, thereby reducing energy consumption during the melting process.

[0003] For example, the utility model disclosed in CN222824804U describes a melting furnace structure for aluminum alloy production. This design creates a heat storage zone by setting up a melting liner and a melting chamber, extending the furnace's holding time and improving subsequent melting efficiency. The aluminum ingots are preheated and softened in the preheating chamber before falling into the heating chamber, reducing damage to the furnace bottom and increasing the furnace's service life. However, most existing technologies use a single-layer partition structure during feeding. Since air expands when heated, its density decreases. Therefore, this structure causes a large amount of heat to escape from the furnace's interior through the preheating zone to the external environment during feeding, resulting in heat loss.

[0004] In view of this, we propose a preheating device for feeding copper melting furnace. Utility Model Content

[0005] The purpose of this utility model is to provide a copper melting furnace feeding preheating device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A copper melting furnace feeding preheating device includes a melting furnace;

[0008] The melting furnace is equipped with a preheating mechanism and an air intake mechanism.

[0009] The preheating mechanism includes a feeding pipe connected to the top of the melting furnace, a baffle slidably connected in the middle of the inside of the feeding pipe, a partition plate rotatably connected to the top of the inside of the feeding pipe, and a feeding hopper fixedly connected to the top of the feeding pipe.

[0010] Preferably, a drive rod is fixedly connected to one end of the partition plate, the partition plate is provided with a plurality of rods, the partition plate is arranged around the side of the drive rod, and one end of the drive rod passes through the feed pipe.

[0011] Preferably, the air intake mechanism includes a heat insulation shell, which is sleeved on the outside of the melting furnace. An air intake pipe is fixedly connected to the bottom end of the heat insulation shell and the side of the feed pipe. A heat insulation plate is fixedly connected to the top inside the heat insulation shell, and the heat insulation plate is disposed below the partition plate.

[0012] Preferably, a guide frame is fixedly connected to the top of the melting furnace, and an exhaust pipe is fixedly connected to the side of the guide frame, with the exhaust pipe passing through the top of the heat insulation shell.

[0013] Preferably, a drive frame is fixedly connected to the end of the baffle, the drive frame has a drive groove, and a crank is rotatably connected to the inner side of the heat insulation shell, the end of the crank being connected inside the drive groove.

[0014] Preferably, a motor is fixedly connected to the outside of the heat insulation shell, a drive gear is fixedly connected to the end of the motor output shaft, and a transmission gear is meshed with the side of the drive gear.

[0015] Preferably, the transmission gears are fixedly connected to the crank and the drive rod, respectively, and the drive gear is a residual gear.

[0016] By employing the above technical solution, this utility model provides a copper melting furnace feeding preheating device that has at least the following beneficial effects:

[0017] (1) The present invention can form a double-layer partition structure inside the feed pipe by setting a rotating partition plate and a sliding baffle, thereby preventing the air inside the melting furnace from escaping into the air and causing the temperature inside the melting furnace to drop during feeding.

[0018] (2) The present invention can preheat the recycled copper material in the area between the partition plate and the baffle plate by setting a double-layer partition structure, and at the same time, use the residual heat in the flue gas to assist in preheating the recycled copper material on the partition plate, thereby extending the preheating time of the recycled copper material, fully preheating the copper material with residual insulating or heat-insulating outer skin, and at the same time avoiding the obstruction of the movement of the baffle plate due to the recycled copper material being too loose during continuous feeding. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2This is a schematic diagram of the internal structure of the present invention. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the internal structure of the preheating mechanism of this utility model;

[0024] Figure 5 In this utility model Figure 4 Enlarged diagram of point A.

[0025] In the diagram: 1. Melting furnace; 2. Preheating mechanism; 201. Feed pipe; 202. Baffle; 203. Partition plate; 204. Feed hopper; 205. Drive rod; 206. Drive frame; 207. Drive groove; 208. Crank; 209. Motor; 210. Drive gear; 211. Transmission gear; 3. Air intake mechanism; 301. Heat insulation shell; 302. Air intake pipe; 303. Heat insulation plate; 304. Guide frame; 305. Exhaust pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] A copper melting furnace feed preheating device, such as Figures 1-5 As shown, it includes a melting furnace 1; the melting furnace 1 is equipped with an air intake mechanism 3, which can introduce air into the melting furnace 1, thereby allowing the insulating outer skin or oil stains on the surface of the recycled copper material to burn completely, reducing impurities mixed into the recycled copper material during the melting process.

[0029] Specifically, the air intake mechanism 3 includes a heat-insulating shell 301, which is fitted onto the outside of the melting furnace 1. The heat-insulating shell 301 insulates the melting furnace 1, and its material reduces heat loss from the melting furnace 1 due to thermal radiation. Simultaneously, the cavity formed between the heat-insulating shell 301 and the melting furnace 1 acts as a heat insulation barrier, reducing heat exchange caused by direct contact between the melting furnace 1 and the outside air. An air intake pipe 302 is fixedly connected to the bottom of the heat-insulating shell 301. The air intake pipe 302 replenishes the internal air and directly communicates with the interior of the heat-insulating shell 301. A heat-insulating plate 303 is fixedly connected to the top of the interior of the heat-insulating shell 301.

[0030] It is worth noting that a guide frame 304 is fixedly connected to the top of the melting furnace 1, and an exhaust pipe 305 is fixedly connected to the side of the guide frame 304. The exhaust pipe 305 passes through the top of the heat insulation shell 301. The guide frame 304 is an inwardly inclined annular plate, which can guide the recycled copper material and make it fall into the middle area of ​​the melting furnace 1. At the same time, the exhaust pipes 305 located on both sides of the guide frame 304 can discharge the flue gas generated inside the melting furnace 1. Meanwhile, the exhaust pipes 305 are located inside the heat insulation shell 301, so that the air entering the heat insulation shell 301 through the air inlet pipe 302 can be preheated by the residual heat of the flue gas inside the exhaust pipe 305 after contacting the exhaust pipe 305.

[0031] Example 2

[0032] like Figures 1-5 As shown, based on Example 1, the melting furnace 1 is equipped with a preheating mechanism 2. The preheating mechanism 2 can preheat the feed of the recycled copper material, thereby avoiding the impact of the subsequent melting operation of the recycled copper material due to the low temperature of the recycled copper material.

[0033] In this embodiment, the preheating mechanism 2 includes a feeding pipe 201 connected to the top of the melting furnace 1. The feeding pipe 201 guides the feeding of recycled copper. A baffle 202 is slidably connected inside the feeding pipe 201, separating the recycled copper material from the interior of the melting furnace 1 to prevent heat loss from the feeding pipe 201 during operation and thus affecting the overall heating and melting efficiency. A spacer plate 203 is rotatably connected to the top of the feeding pipe 201, separating the material and dividing the preheating area from the feeding area. This ensures continuous feeding while preventing excessive heat loss during preheating, which could lead to insufficient preheating of the recycled copper and affect subsequent melting operations. A feeding hopper 204 is fixedly connected to the top of the feeding pipe 201. A heat insulation plate 303 is positioned below the spacer plate 203, further separating the preheating area from the feeding area and reducing heat transfer. An air inlet pipe 302 is fixedly connected to the side of the feed pipe 201, which can guide the preheated air into the melting furnace 1.

[0034] Based on this, a drive rod 205 is fixedly connected to one end of the partition plate 203. The partition plate 203 is provided with several rods. The partition plate 203 is arranged around the side of the drive rod 205. One end of the drive rod 205 passes through the feed pipe 201. The drive rod 205 can drive the partition plate 203 to rotate and feed the recycled copper material. At the same time, the multiple partition plates 203 can guide and drive the raw material.

[0035] Furthermore, a drive frame 206 is fixedly connected to the end of the baffle 202. A drive groove 207 is provided on the drive frame 206. A crank 208 is rotatably connected to the inside of the heat insulation shell 301. The end of the crank 208 is connected to the inside of the drive groove 207. The structure of the drive frame 206 can drive the baffle 202 to open or close, thereby feeding or blocking the raw material. At the same time, the structure of the crank 208 can drive the drive frame 206 through the drive groove 207, so that the drive frame 206 can reciprocate.

[0036] It is worth noting that a motor 209 is fixedly connected to the outside of the heat insulation shell 301, and a drive gear 210 is fixedly connected to the end of the output shaft of the motor 209. A transmission gear 211 is meshed with the side of the drive gear 210. The transmission gear 211 is fixedly connected to the crank 208 and the drive rod 205 respectively. The drive gear 210 is a residual gear. The motor 209 can drive the transmission gear 211 through the drive gear 210, and drive the crank 208 or the drive rod 205 to rotate respectively. The drive gear 210 is a residual gear structure. Therefore, when the drive gear 210 rotates, it can only drive the crank 208 or the drive rod 205 alone, so that the partition plate 203 and the baffle 202 cannot be opened at the same time.

[0037] In use, the copper melting furnace feeding preheating device of this utility model first feeds recycled copper material into the feeding hopper 204 during the feeding process, and moves along the feeding hopper 204 to the partition plate 203. Subsequently, as the partition plate 203 rotates, the copper material falls onto the baffle plate 202. The area between the partition plate 203 and the baffle plate 202 is the preheating zone, and the area between the partition plate 203 and the feeding hopper 204 is the auxiliary preheating zone. The preheating zone is located between the heat insulation shell 301 and the melting furnace 1. Therefore, the heat from the flue gas inside the exhaust pipe 305 and the heat radiated from inside the melting furnace 1 are transferred to the recycled copper material on the baffle plate 202 through the feeding pipe 201. The recycled copper material is fully heated, and the exhaust pipe 305 passes through the top of the heat insulation plate 303 and the heat insulation shell 301. Therefore, the cavity between the heat insulation plate 303 and the heat insulation shell 301 can use the remaining heat of the exhaust pipe 305 to assist in heating the recycled copper material on the partition plate 203, thereby increasing the heating time of the recycled copper material and reducing the impact of the insulating skin or heat insulation shell on the surface of the recycled copper material on the preheating of the recycled copper material.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A copper melting furnace feeding preheating device, comprising a melting furnace (1), characterized in that: The melting furnace (1) is equipped with a preheating mechanism (2) and an air intake mechanism (3). The preheating mechanism (2) includes a feed pipe (201), which is connected to the top of the melting furnace (1). A baffle (202) is slidably connected in the middle of the feed pipe (201), and a partition plate (203) is rotatably connected to the top of the feed pipe (201). A feed hopper (204) is fixedly connected to the top of the feed pipe (201).

2. The copper melting furnace feeding preheating device according to claim 1, characterized in that: One end of the partition plate (203) is fixedly connected to a drive rod (205). The partition plate (203) is provided with several rods. The partition plate (203) is arranged around the side of the drive rod (205). One end of the drive rod (205) passes through the feed pipe (201).

3. The copper melting furnace feeding preheating device according to claim 1, characterized in that: The air intake mechanism (3) includes a heat insulation shell (301), which is sleeved on the outside of the melting furnace (1). An air intake pipe (302) is fixedly connected to the bottom end of the heat insulation shell (301) and the side of the feed pipe (201). A heat insulation plate (303) is fixedly connected to the top inside the heat insulation shell (301), and the heat insulation plate (303) is located below the partition plate (203).

4. The copper melting furnace feeding preheating device according to claim 1, characterized in that: The melting furnace (1) is fixedly connected to a guide frame (304) at the top, and an exhaust pipe (305) is fixedly connected to the side of the guide frame (304). The exhaust pipe (305) passes through the top of the heat insulation shell (301).

5. The copper melting furnace feeding preheating device according to claim 3, characterized in that: The baffle (202) is fixedly connected to a drive frame (206) at its end. The drive frame (206) has a drive groove (207) on it. The heat insulation shell (301) is rotatably connected to a crank (208) on its inner side. The end of the crank (208) is connected to the inside of the drive groove (207).

6. The copper melting furnace feeding preheating device according to claim 3, characterized in that: A motor (209) is fixedly connected to the outside of the heat insulation shell (301), and a drive gear (210) is fixedly connected to the end of the output shaft of the motor (209). A transmission gear (211) is meshed with the side of the drive gear (210).

7. The copper melting furnace feeding preheating device according to claim 6, characterized in that: The transmission gear (211) is fixedly connected to the crank (208) and the drive rod (205) respectively, and the drive gear (210) is a residual gear.

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